Did a preview and date and time was pre-filled with today's date and
time I looked at the date and time properties and default value to
blank I looked at form load and rule and it was nothing that tell me
how those controls got auto populated on form load.

AFAIU, this template was created in Infopath Designer 2003 with custom code in JScript which editing (or even viewing) is not supported in later versions of Infopath Designer

If you remove JScript (by pressing Remove code button in Programming of Form Options < Info < File, on ribbon) , all the controls will stop to be auto-populated

BTW, this removal will enable custom coding in sopported by later Infopath Designers C# and VB.NET which was blocked by presence of unsupported for editing JScript

Where could this be saved? or How would you save this data (like a
master/child)